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Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version |
Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
vsnid | ⊢ 𝑥 ∈ {𝑥} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 3444 | . 2 ⊢ 𝑥 ∈ V | |
2 | 1 | snid 4561 | 1 ⊢ 𝑥 ∈ {𝑥} |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2111 {csn 4525 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-sn 4526 |
This theorem is referenced by: exsnrex 4578 rext 5306 unipw 5308 xpdifid 5992 opabiota 6721 fnressn 6897 fressnfv 6899 snnex 7460 wfrlem14 7951 wfrlem16 7953 mapsnd 8433 findcard2d 8744 ac6sfi 8746 iunfi 8796 elirrv 9044 kmlem2 9562 fin1a2lem10 9820 hsmexlem4 9840 iunfo 9950 modfsummodslem1 15139 lcmfunsnlem2lem1 15972 coprmprod 15995 coprmproddvdslem 15996 lbsextlem4 19926 frlmlbs 20486 coe1fzgsumdlem 20930 evl1gsumdlem 20980 maducoeval2 21245 dishaus 21987 dis2ndc 22065 dislly 22102 dissnlocfin 22134 comppfsc 22137 txdis 22237 txdis1cn 22240 txkgen 22257 isufil2 22513 alexsubALTlem4 22655 tmdgsum 22700 dscopn 23180 ovolfiniun 24105 volfiniun 24151 jensen 25574 uvtx01vtx 27187 cplgr1vlem 27219 unidifsnel 30307 gsumpart 30740 extdg1id 31141 esum2dlem 31461 bnj1498 32443 funen1cnv 32467 cvmlift2lem1 32662 frrlem12 33247 frrlem14 33249 funpartlem 33516 topdifinffinlem 34764 fvineqsneq 34829 pibt2 34834 finixpnum 35042 mbfresfi 35103 pclfinN 37196 mzpcompact2lem 39692 fourierdlem48 42796 sge0sup 43030 funressnvmo 43637 c0snmgmhm 44538 |
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